html, body {
    height: 100%;
    min-height: 100vh;
    margin: 0;
}

.login-bg {
    min-height: 100vh;
    background: url('/assets/img/backgrounds/Banner_1500x1000_4.png') no-repeat center center / cover;
}

.qr-frame {
    position: absolute;
    left: 5%;
    top: 50%;
    width: 90%;
    aspect-ratio: 1 / 1; /* 🔥 HÌNH VUÔNG */
    transform: translateY(-50%);
    border: 3px solid white;
    border-radius: 16px;
    pointer-events: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.qr-frame.qr-ok {
    border-color: #00ff6a;
    box-shadow: 0 0 14px rgba(0,255,106,0.9);
}

.qr-frame.qr-invalid {
    border-color: #ff3b3b;
    box-shadow: 0 0 14px rgba(255,59,59,0.9);
}

    .qr-frame.qr-detected {
        border-color: #00ff6a;
        box-shadow: 0 0 14px rgba(0,255,106,0.85);
    }
.qr-overlay {
  pointer-events: none;
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}





/*.qr-frame {
  width: 260px;
  height: 260px;
  border-radius: 16px;
  border: 3px solid rgba(255,255,255,0.9);
  box-shadow: 0 0 0 2000px rgba(0,0,0,0.35);
}*/

.qr-hint {
  margin-top: 14px;
  color: white;
  font-weight: 600;
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
/*.page-main {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
}*/